Brush



March 6, 1928.-

E. L. H. CUSBY BRUSH Filed July 19. 191 9,, 2 2 Sheets-Sheet 1 provide a plate Patented Mar. 6, 1928.

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ERIC LnoroLn nueo cosBY, or rnnnrneroiv, ENGLAND.

BRUSH.

Application filed July 19, 1926, Serial No.

This invention relates to that class of brush having a stock carrying the bristles detachable from the back and secured thereto by fastening means such as is set forth in my previous U. S. Patents Nos. 1,583,664 and 1,598,475.

An object of my present invention is to or liner having means to receive and engage complemental parts formed on or carried by the stock, which plate or liner may be secured in a cavity in the back or may have the back formed around-it. Another object of the invention is to provide means on the plate, when such plate is to be fitted to an ordinary back, to form-and maintain a'perfect joint between the plate or liner and the rim of brush irrespective of anychange caused by expansion or contraction in shape or size of the brush, where the back is formed of wood or the like, or where the back is formed on the plate or liner. A further object is to provide the plate or liner with means over the edge-of which a covering may be burred.

My invention will be more clearly understood from the following description aided by the examples of construction shown on the annexed drawings.

Figure 1 is a face view of the back, the bristle-carrying stock being removed.

Figure 2 is a section of the back on the line 2-2 of Figure 1, but having the stock bearing a few tufts of bristles inserted therein.

Figure 3 is a section of the back on the line 33 of Figure 1. I

Figure 4 is a face view of a modified "form of the back.

Figure 5 is a section of the back shown in Figure 4 on the line 5-5 of Figure 4 with the stock inserted therein. 7

Figure 6 is a view similar to Figure 5 of another modified form of the back.

I construct the plate or liner for the back from sheet metal or other material having a flat surface A and a central longitudinally extending recess formed with a bottom B and side walls B The bottom B of said recess at one of its ends is longitudinally slitted along its side edges to form a tongue 2 which is turned forwardly. The bottom B of the recess adjacent its opposite end is also longis tudinally slitted along its side edges and also transversely slitted between the ends of its longitudinal slits to form two tongues 2 and I which are turned, respectively, for

123,456, and in Great Britain July 29, 1925.

wardly and rearwardly. The rearwardly turned tongue I is bent back at substantially an angle of to the rear face of the plate or liner to form a nose, piece, as shown in Figure 2. The tongues), 2, and I form openings D and Ev in the plate or liner and said tongues have aligned apertures to re ceive a rod 3 for securing the stock in the back.

Surrounding the flat plate or liner is a wall over lip G. M

In this construction the rod 3, spring 5, curled end 12 and portion 23 0f the rod 3 are similar in construction to those shown in Figures 6 and 7 of my previous U. S. Patent No. 1,598,475. rittached to the rod 3 is a catch Z having a pair of forwardly projecting arms K and a pair ofrearwardly projecting arms J. The arms K are parallel to but in a different plane from the arms J. The arms J ride on the bottom B of the recess, whilst the other pair portion A. of the G having a curved of arms K form catches for engaging a second set of prongs or projections L extending from the rear face of the plate 0 and extending in an opposite direction to the prongs F, which project from the rear face of the plate 0, and engage the tongue I so that a double catch is provided.

The plate or liner is secured in the back by means of screws Q. I 1

Figure 4 is a face view of amodified brush back with the stock and bristles removed. Figure 5 is a section on the line 55 of Figure 4, but showing the stock and bristles inserted in the back, the recess in the liner A being formed without a bottom, and in this recess is positioned the strip H having adjacent one of its ends lateral lugs M. M

. whichfit similar shaped recesses in the linerv A, the other end of the strip H being provided with an extension and a forwardly projecting tongue or nose P. The locking rod 3 in this embodiment of the invention extends through aligned openings in tongues projecting from the front face of the strip H. o The wall G of the liner A in th s case is provided with a curled lip G which fits into the recess of the brush back and so forms a flush joint with the rim of the latter irrespective of any varying or contraction of the material of which the back is made.

According to Figure 6 the liner A is formed with a straight wall G and this is covered by a channelled strip N, and, after ill) the liner has been covered with a plaster or cement P, a sheet metal back is placed over the cement P and its edges bent over the channelled strip'N, as shown and in a well known manner.

In the case of Figures 1 to 5 it is understood that the back is formed with a recess shaped corresponding to the shape of the liner so that the two have a good tit and that the liner is secured to the back by screws Q.

What- 1' do claim as my invention and desire to claim is:

1. T he comb nation with a brush back having a cavity in one face with a longitudinal recess in the center thereof and a, bristle carrying plate for detachably mounting therein, of a metal liner for the cavity and recess and for the reception of the bristle carrying plate, said liner fitting Within the recess and cavity of the back and being contiguous with the edge of said cavity.

2. The combination with a brush back having a cavity in one face and a longitudinal recess in the center thereof and a bristle carrying plate for detachably mounting therein, of a metal liner for the cavity and recess and for the reception of the bristle iarrying plate, said liner fitting Within the recess and cavity in contiguous relation with the edge of said recess, and cooperative locking means carried by the liner and the bristle carrying plate for locking the parts together.

3. The comlfnation with a hrush back having a cavity in one face thcreot, said cavity being prorided with a longitudinal recess centrally thereof. and a bristle carrying plate for deta l ably mounting therein, of a metal liner adapted to {it rarestensTVely' with the rarity and recess, oi the back and having rim engaging portions adapted to project beyond the rim of the cavity, means for securing the liner in said cavity. and cooperative means carried by the liner and the bristle carrying plate for locking the plate within the liner.

In testimony whereof my hand.

ERIC IJEOPOLD HUGO COSBY.

I have hereunto set 

